Adaptive optimum start/stop control system
First Claim
1. An adaptive optimum start/stop controller for controlling an air treatment apparatus at a reduced energy consuming level during periods of non-occupancy of a building and for energizing the air treatment apparatus before occupancy so that the building is comfortable by occupancy, said controller comprising:
- temperature sensing means for sensing space temperature within said building;
controller means responsive to said temperature sensing means and to real time for determining optimum start/stop times so that said building is controlled at energy conservation levels during non-occupancy and comfortable levels during occupancy, said controller means adjusting said optimum start/stop times based upon whether space temperature attained a desired temperature during a prior start/stop operation within an accuracy window of time encompassing the start of a corresponding prior occupancy/non-occupancy period; and
,communication means adapted to connect said controller means to said air treatment apparatus.
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Abstract
An adaptive optimum start/stop controller for controlling an air treatment apparatus at a reduced energy consuming level during periods of non-occupancy of a building and for energizing the air treatment apparatus before occupancy so that the building is comfortable by occupancy, the controller including a temperature sensor for sensing space temperature within the building, a controller responsive to the temperature sensor and to real time for determining optimum start/stop times so that the building is controlled at energy conservation levels during non-occupancy and comfortable levels during occupancy, the controller adjusting the optimum start/stop times based upon the accuracy of prior start/stop times, and a communication channel for connecting the controller to the air treatment apparatus.
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Citations
12 Claims
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1. An adaptive optimum start/stop controller for controlling an air treatment apparatus at a reduced energy consuming level during periods of non-occupancy of a building and for energizing the air treatment apparatus before occupancy so that the building is comfortable by occupancy, said controller comprising:
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temperature sensing means for sensing space temperature within said building; controller means responsive to said temperature sensing means and to real time for determining optimum start/stop times so that said building is controlled at energy conservation levels during non-occupancy and comfortable levels during occupancy, said controller means adjusting said optimum start/stop times based upon whether space temperature attained a desired temperature during a prior start/stop operation within an accuracy window of time encompassing the start of a corresponding prior occupancy/non-occupancy period; and
,communication means adapted to connect said controller means to said air treatment apparatus. - View Dependent Claims (2, 3, 4)
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5. An adaptive optimum start controller for controlling an air treatment apparatus at a reduced energy consuming level during periods of non-occupancy of a building and for energizing the air treatment apparatus at start times before occupancy so that the building is made comfortable by occupancy, said controller comprising:
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temperature sensing means for sensing space temperature within said building; controller means responsive to said temperature sensing means and to real time for determining optimum start times so that said building is controlled at a reduced energy consuming level during non-occupancy and at a comfortable level during occupancy, said controller means adjusting said optimum start times based upon whether space temperature attained a desired temperature during a prior start operation within an accuracy window of time encompassing the start of a corresponding prior occupancy period; and
,communication means adapted to connect said controller means to said air treatment apparatus. - View Dependent Claims (6, 7, 8)
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9. A method for controlling an air treatment apparatus at a reduced energy consuming level during periods of non-occupancy of a building and for energizing the air treatment apparatus at start times before occupancy so that the building is made comfortable by occupancy, the method comprising the steps of:
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sensing space temperature within said building; determining rate of temperature change based upon the sensed temperature and real time which is required by the air treatment apparatus to drive the temperature of the building through a temperature change; determining adjustment time based upon the rate of temperature change and the difference between actual temperature during setback and desired temperature at beginning of occupancy; providing an accuracy window of time around the beginning of occupancy; adjusting the adjustment time based upon whether space temperature attained a desired temperature during a prior start operation within said accuracy window of time encompassing the start of a corresponding prior occupancy period; and
,initiating operation of the air treatment means at a time defined by the beginning of occupancy less the adjusted adjustment time. - View Dependent Claims (10, 11, 12)
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Specification